payData={
    "message": {
        "pay": {
          "timeStamp": "1525681145",
          "nonceStr": "BkPggorBXZwPGXe3",
          "package": "prepay_id=wx071619042918087bb4c1d3d72999385683",
          "signType": "MD5",
          "paySign": "D1642DEEF1663C8012EDEB9297E1D516"
        },
        "order_number": "GD20180507000000000110"
      },
      "meta": { "msg": "预付订单生成成功", "status": 200 }
}

exports.pay = (req,res)=>{
    res.send(payData)
}